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Improvement in Swinging Berths.

Description: Patent for the improvement of ships' berths, by neutralizing the effect of the roll and pitch of the seas to prevent sea sickness, as well as providing space for baggage and ballast.
Date: July 16, 1875
Creator: Brown, Bartlett W.
Partner: UNT Libraries Government Documents Department

Book-Sewing Machine.

Description: Patent for improvements in book sewing machines, the descriptions are included by figures.
Date: July 16, 1867
Creator: Sims, Ferdinand
Partner: UNT Libraries Government Documents Department
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